Visit London is urging the city’s event planners, venues and Olympic stakeholders to register any large events being held before March 2012, to avoid event clashes.

In an effort to ensure the city has both the capacity and the public services available to support big events, Mayor of London Boris Johnson is calling on the events industry to provide information as early as possible, if planning an event for more than 500 people which will take place in 2012.

Managers of big event venues will be able to use the first-ever Culture Diary which has been created from a partnership between the Mayor and Visit London. Those organising cultural and community events for 2012 in any of London’s boroughs have to register for use of the Culture Diary before 31 December 2010. Details of the event must be entered to the site by 31 March 2011 so public services can allocate their resources in preparation for 2012.

Any non-cultural events such as sports tournaments, product launches and international conferences for more than 499 people or those which would require a new licence or closure to roads or traffic order will also need to be logged but with the respective London Borough before 31 March next year.

Tracy Halliwell Visit London’s director of business tourism told Meetpie: “This is a real call to action for event planners globally. 2012 will be the busiest year in London’s events history and the city needs to know all large events which might be taking place.”

”By knowing the landscape of activities in advance, it will help all the regular services that support events to plan where to allocate London’s valuable resources on particular days and create the desired celebratory atmosphere across London.”